Draining And Filling The Cooling System - 2.4L: Draining

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.

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NOTE:

Not all of the coolant will be removed from the engine and radiator with this procedure, but enough coolant will be removed to perform most cooling system service procedures.

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NOTE:

Make sure the coolant is not HOT and under pressure.

NOTE:

DO NOT WASTE reusable coolant. If the solution is clean, drain the coolant into a clean container for reuse.

When the engine is cold, remove the filler cap (1) from the pressurized coolant bottle.
Use the
(special tool #10288, Pliers, Hose Clamp)

to loosen the clamp (2) and remove the degas hose (3) from the pressurized coolant bottle.

NOTE:
Put the released clamp in a safe place so that it is not lost in the engine compartment, it will be reinstalled.

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Place the degas hose (1) into a clean container (2) for coolant reuse.
Connect a regulated shop air supply (3) to the degas hose fitting on the pressurized coolant bottle.
Install and tighten the filler cap (4) on the pressurized coolant bottle.
Hold the degas hose (1) in the reuse container (2) and apply no more than 145 kPa (21 psi) of regulated shop air pressure to the pressurized coolant bottle to force coolant into the container.
When the coolant is no longer flowing steadily from the degas hose, turn off the air pressure.

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Release the clip (1) and remove the coolant hose (2) from the pressurized coolant bottle.

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Taper the end of a 8mm or 5/16" hose (1) and insert it into the removed pressurized coolant bottle hose.

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Place the hose (1) into the container (2) for coolant reuse.
Connect a regulated shop air supply (3) to the degas hose.
Hold the hose (1) in the reuse container (2) and apply no more than 145 kPa (21 psi) of regulated shop air pressure to the degas hose to force the remaining coolant into the container.
When the coolant is no longer flowing steadily from the hose, turn off the air pressure.

Courtesy of CHRYSLER GROUP, LLC
Reinstall the coolant hose (1) onto the pressurized coolant bottle and engage the clip (2).
Reinstall the degas hose (3) onto the pressurized coolant bottle and tighten the clamp (4) with the (special tool #10288, Pliers, Hose Clamp).